Create Dockerfile

Dockerfile

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+# Use an official Python runtime as a parent image.
+# We choose a slim version to keep the image size small.
+FROM python:3.10-slim
+
+# Set the working directory in the container.
+# All subsequent commands will be executed in this directory.
+WORKDIR /app
+
+# Copy the requirements file into the container.
+# We do this first to leverage Docker's layer caching.
+# If requirements.txt doesn't change, this step is skipped.
+COPY requirements.txt ./
+
+# Install any needed packages specified in requirements.txt.
+# The --no-cache-dir flag helps to keep the image smaller.
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application code into the working directory.
+COPY . .
+
+# Expose a port if your application is a web server.
+# For example, if your application runs on port 8000.
+# EXPOSE 8000
+
+# Define the command to run your application.
+# This command will be executed when the container starts.
+# We use main.py as the entry point, as per our architecture.
+CMD ["python", "main.py"]